Kerakoll H40 Eco Marmorex
H40® Eco Marmorex rapidly develops a high level of hydraulicity which locks in the mixing water and stops stains from forming on the tile surface, thereby making it safe to lay the most delicate marble and natural stone.
- White adhesive for marble, limestone & granite
Area of use
Laying of dimensionally and colour stable natural stone coverings and resin or cement-based recomposed materials. Laying of homogeneous tiles, ceramic tiles, klinker, cotto, glass and ceramic mosaic, of all types and formats, on flooring and walls. For domestic, commercial and industrial applications; in areas that are permanently damp and subject to thermal shock and freezing.
– Cement or lime and cement-based plasters and cement screeds,
– Mineral screeds made using hydraulic binders such as Keracem® Eco,
– Cement-based levelling and self-levelling products,
– Concrete and cellular concrete,
– Existing flooring with glazed tiles, cement-based and resin paving, homogeneous tiles
– Underfloor heating systems
– Cement and synthetic resin-based waterproofing products,
– Cast asphalt screeds,
– Rigid wood substrates.
Suitable for gypsum-based plasters and anhydrite-based screeds, gypsum-based levelling and self-levelling products, after application of the eco-friendly water-based surface isolation product Primer A Eco.
Do not use:
Do not use to lay recomposed materials subject to thermal expansion and natural stone that is highly sensitive to deformation and absorption; on plastic or resilient materials, metals and on substrates subject to continuous moisture rising.
Instructions for use
Preparation of substrates:
Substrates must comply with BS 5385, parts 1-5, be compact, free from substances that reduce adhesion such as dust, oil, grease and with no loose material. The substrate must be stable, non-deformable, without cracks and have already completed the curing period of hygrometric shrinkage. Uneven sections must be corrected with suitable smoothing and finishing products such as Keralevel® Eco LR or Keratech® Eco R30. Anhydrite screeds must have a damp content of ≤ 0.5 CM-% and be adequately sanded, cleaned using a suitable vacuum cleaner and primed with Primer A Eco. Cement-based screeds must be cured for at least 28 days and have a residual humidity ≤ 2 CM-%. Can be laid on mineral screeds prepared using the eco-friendly binder Keracem® Eco after only 24 hrs (≤ 3 CM-%). When laying on screeds containing heating systems, follow the instructions given in the BS 8204 used to test the heating system itself. When under floor heating has been used the residual humidity of anhydrite screeds must be ≤ 0.3 CM-%, whereas that of cement screeds must be ≤ 2 CM-%. Cast asphalt screeds with well-bonded sand must be cleaned by vacuuming off the excess sand before laying.
Instruction for use:
Prepare H40® Eco Marmorex in a clean container, first of all pouring in a quantity of water equal to approximately ¾ of what will be required. Gradually pour the powder into the container, mixing the paste from the bottom upwards with a low-rev (400/min.) electrical mixer. Add more water until the desired consistency is obtained. The mixture must be of smooth consistency and without any lumps. Apply a contact layer of adhesive using the smooth part of the notched trowel. Then apply the adhesive with a suitable, notched trowel for the type and dimensions most appropriate for the format and type of tiles to be used. In environments subject to heavy traffic and in external locations, use the back buttering technique.
Mixing agitators, toothed spreaders suitable for the formats and types of tiles to be used. Wash tools with water before the product hardens.